1. The effects of progesterone on the amplitude, periodicity and onset of estrous activity cycles in the intact female rat;Axelson;Biol. Reprod.,1979
2. Peripheral levels of estrogen in the cyclic hamster;Baranczuk;Endocrinology,1973
3. The effects of progesterone and of pentobarbitone administrated at the dioestrous stage on the ovarian cycle of the rat;Brown-Grant;J. Endocr.,1969
4. Stimulating and inhibiting effects of progesterone on the release of luteinizing hormone;Caligaris;Acta Endocr.,1968
5. Circadian organization of the estrous cycle of the golden hamster;Fitzgerald,1976